Special geocaches have been hidden at 48 sites throughout Maryland. The first 200 people who find and record at least 20 geocaches* will receive a commemorative trackable geocoin. To be eligible for the coin, record the location, date and code, of your find, in the Official MML Geotrail Passport and post a picture at each cache. Completed Passports must then be mailed to Maryland Municipal League offices.

*Cachers must locate at least two caches within each of the participating MML districts listed below:
District 1 Lower Eastern Shore
District 2 Upper Eastern Shore
District 4 Southern Maryland
District 5 Montgomery County
District 6 Frederick County
District 7 Allegany/Garrett Counties
District 8 Washington County
District 9 Prince Georges County
District 10 Cecil/Harford Counties
District 11 Carroll County

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